Arthritis Foundationhttp://www.arthritis.orgThe mission of this group is to support research to find the cure for and prevention of arthritis and to improve the quality of life for those affected by arthritis.

Lupus Foundation of Americahttp://www.lupus.orgThe mission of the Lupus Foundation of America is to educate and support those affected by lupus and find a cure. Call (800) 558-0121 for information.

American Foundation for AIDS Research (amfAR)http://www.amfar.orgThis nonprofit organization is dedicated to the support of AIDS research, prevention, treatment education, and advocacy.

Leukemia & Lymphoma Societyhttp://www.leukemia-lymphoma.orgThe Leukemia & Lymphoma Society is dedicated to funding blood-cancer research, education, and patient services. The Society's mission is to cure leukemia, lymphoma, Hodgkin's disease, and myeloma, and to improve the quality of life of patients and their families. Call: (914) 949-5213

Food Allergy and Anaphylaxis Network for Kidshttp://www.fankids.orgThis website, operated by the Food Allergy and Anaphylaxis Network, has separate sections for kids.